CN101168334A

CN101168334A - Bookbinding apparatus and image forming apparatus

Info

Publication number: CN101168334A
Application number: CNA2007101678163A
Authority: CN
Inventors: 藤田启子; 渡边洁; 关口肇
Original assignee: Canon Inc
Current assignee: Canon Inc
Priority date: 2006-10-26
Filing date: 2007-10-26
Publication date: 2008-04-30
Anticipated expiration: 2027-10-26
Also published as: US20080101890A1; US7866645B2; CN100542828C; JP4926646B2; JP2008105318A

Abstract

A bookbinding apparatus comprises, a stacking unit on which sheets are stacked; a folding portion which folds the sheets stacked on the stacking unit; a humidifying unit which humidifies portions of the sheets to be fold lines of a booklet before folding by the folding portion; and a controller which controls a humidifying condition at the time of the humidifying by the humidifying unit, wherein the humidifying condition is variable according to the sheets composing the booklet.

Description

Bookbinding apparatus and imaging device

Technical field

What the present invention relates to is the imaging device that forms the attachment means of fold line and have this attachment means on brochure.

Background technology

Known traditionally a kind of attachment means, this attachment means is bound the paper doubling of exporting from the main body of imaging devices such as duplicator and printer to the inboard of book then.

A kind of like this structure of attachment means is disclosed in Japanese Patent Application Laid-Open 61-2671 number.In addition, Figure 16 shows traditional imaging device 10 and the schematic block diagram of attachment means 11 on its cross section.This imaging device 10 and attachment means 11 are disclosed among JP-A 61-2671 number.

As shown in figure 16, attachment means 11 is provided with stacking dish 12, be used as the jackknife 15 of folded part and form the folding roller of part to 16 as fold line as the pilling paper sheets part.

Have an opening portion 14 to be positioned at the intermediate portion on 12 stacking dish, one is positioned at the end that stacks dish 12 to the backstop 13 of paper retaining in the fixed position.In addition, jackknife 15 is located at the top of the opening portion 14 of stacking dish 12, thereby can rise and fall.

When paper when the main body of imaging device 10 is sent to attachment means 11, the paper that sends is overlayed in order to stack on the dish 12.

Afterwards, be located at the jackknife 15 that stacks dish 12 tops and drop on to overlay and stack above the paper of dish on 12, then jackknife 15 impacts the mid portion of paper, makes paper folding and paper advanced in the opening portion 14 that stacks dish 12.In explanation subsequently, overlay stack the plurality of sheets of paper of dish on 12 open folded up after, be called brochure.

The opening portion 14 interior paper that propelling stacks dish 12 are folded to make brochure.Afterwards, brochure is supplied to folding roller and is folded to 16.Folding roller to 16 by when transmitting the brochure supplied with from opposite both sides folder brochure, fold line on the mid portion of brochure.Because folding roller is to 16 rotation, uploads the face of serving at dish 17 and be formed with the brochure of fold line and it is overlayed on the dish 17.

Yet when discharging by this folding roller 16 applied pressures, brochure can open under himself flexible effect, and therefore, the fold line of the brochure that forms by traditional attachment means 11 can be returned to reset condition once in a while.As a result, the outward appearance of brochure seems very poor, and fold line has opened.

Under the situation of the big paper of the amount of opening as the paper that constitutes brochure, to open relevant problem the most obvious with fold line.The paper that the amount of opening is big refers to the easy open paper in folding back, hangs down the few paper such as thin paper of the edge water yield in the low environment of humidity though comprise cardboard and rigidity that rigidity is high.

When little paper bent towards the direction that is orientated perpendicular to paper fibre originally by an amount of opening, these paper opened very greatly easily.Therefore, these paper are considered to the big paper of the amount of opening.

Even increase, can not be subdued to being lower than to a certain degree opening relevant problem with paper 16 applied pressures by folding roller.For this reason, need to increase by folding roller the solution the method for 16 applied pressures except that being used to.As an example of this solution, Japanese Patent Application Laid-Open discloses a kind of method 11-157247 number, uses the wetting paper of damping device, therefore is easy to form the fold line of paper.

Figure 17 is the schematic block diagram of attachment means 11 on its cross section with 11-157247 number disclosed moistening unit device of JA-A.

Attachment means 11 shown in Figure 17 be provided with the wetting chamber 18 as damping device,

wetting nozzle

19,20 and as the warm-up mill of heating part to 30.

In Figure 17, wetting chamber 18 is stacking the wetting paper that is being transmitted of dish 12 upstream sides.The part that wetting nozzle 19 will be folded the wetting brochure of 16 upstream side at folding roller.The part that wetting nozzle 20 will be folded the wetting brochure in 16 downstream at folding roller.

When part that these

damping device

18,19,20 wetting brochures will be folded,, before forming fold lines to 16, also can reduce the amount of opening of paper with folding roller even use the big paper of the amount of opening.So can easily form fold line to 16, thereby the brochure that does not have open outward appearance good can be provided with folding roller.

Yet, in attachment means 11, do not have to change wet condition according to the paper that will form fold line with 11-157247 number disclosed damping device of Japanese Patent Application Laid-Open.For this reason, use under the situation of making through the special paper that is difficult to seep water of the paper of special disposal such as the surface at brochure, paper can curl towards the open direction of brochure, and therefore, the outward appearance of brochure is not good.

In traditional moistening unit device and since wetting chamber 18 be configured to also can wetting paper folded portions not, so this unnecessary wetting efficient of this utensil that causes is poor.

As shown in figure 17, because a piece of paper on the outermost locations in the paper that wetting

nozzle

19,20 is wetting formation brochure, so the paper on the very difficult wetting brochure inner position.

As a result, the paper on the brochure inner position is with respect to the paper on the outer position, and its amount of opening can not fully be reduced, and therefore, when opening, the outward appearance of brochure may be not good.

In addition, the wetted nozzle 19 wetting parts of paper are exposed to the outside from the opening portion that stacks dish 12.Therefore, the water that wetting nozzle 19 gives evaporation around this zone is inside folded up 16 by folding roller up to brochure.

As a result, because the amount of opening of paper does not fully reduce, when opening, the outward appearance of brochure may be not good.

Described from paper wetting with reference to Figure 18 A, Figure 18 B and Figure 18 C to the phenomenon that takes place to curl.

Figure 18 A, Figure 18 B and Figure 18 C are the model schematic diagrames, expression be the cross section of wetting paper.In these accompanying drawings, the wetting part (dash area among the figure) of wetted device once stretched after just wetting, but, when paper has been done again, will produce the power shown in arrow among the figure, these power are along with respect to wetting direction of shrinking to take a step forward.

On the other hand, do not have wetting part to be subjected to wetting and dry influence hardly, therefore, can not stretch or shrink.So wetting part and not have the amount of contraction between the wetting part be different.As a result, when paper was wetted, paper curled towards the direction that the paper wetting surface shrinks easily.

Shown in Figure 18 C, the situation of expression is, because the brochure inboard is wetted, brochure is inboard to be shunk, and paper curls towards the direction of brochure closure.As a result, paper can not open, thereby the outward appearance of brochure can be good.

But, shown in Figure 18 A, because the outside of

wetting nozzle

19,20 wetting brochures, so shrink in the outside of brochure.So paper curls towards the open direction of brochure, expansion has taken place, thereby the outward appearance of brochure may be not good.

Summary of the invention

The purpose of this invention is to provide a kind of bookbinding apparatus and have the imaging device of this bookbinding apparatus, wherein, this bookbinding apparatus can wetting effectively paper and bind out the brochure that does not have open outward appearance good.

To achieve these goals, the present invention includes: the top device for pilling that stacks paper; The folding device that the paper that overlays on the device for pilling is folded; Damping device is utilizing before folding device folds, and is used for making on the wetting paper part of brochure fold line; Control device is used for carrying out wetting time control wetting conditions at damping device.Wetting conditions is changeable corresponding to each paper that constitutes brochure.

The image-generating unit that imaging device of the present invention comprises top bookbinding apparatus and form image on paper.

According to the present invention, damping device is provided with the controller of control wetting conditions, and it is wetting that the part that become the brochure fold line is obtained.As a result, can provide and to bind out bookbinding apparatus that does not have the good brochure of open outward appearance and imaging device with this bookbinding apparatus.

Description of drawings

Reference is below in conjunction with the description that accompanying drawing carried out, and the present invention may be better understood and further advantage.In the accompanying drawings:

Fig. 1 is the schematic block diagram according to the imaging device of first embodiment of the invention;

Fig. 2 is the schematic block diagram according to the bookbinding apparatus of first embodiment of the invention;

Fig. 3 is the block diagram according to the control structure of first embodiment of the invention;

Fig. 4 A is the illustraton of model of expression according to the wetting control of paper of first embodiment of the invention;

Fig. 4 B is the illustraton of model of expression according to the wetting control of paper of first embodiment of the invention;

Fig. 5 A is the illustraton of model of expression according to the wetting control of paper of second embodiment of the invention;

Fig. 5 B is the illustraton of model of expression according to the wetting control of paper of second embodiment of the invention;

Fig. 6 A is the illustraton of model of expression according to the wetting control of paper of third embodiment of the invention;

Fig. 6 B is the illustraton of model of expression according to the wetting control of paper of third embodiment of the invention;

Fig. 7 A is the illustraton of model of expression according to the wetting control of paper of first embodiment of the invention;

Fig. 7 B is the illustraton of model of expression according to the wetting control of paper of first embodiment of the invention;

Fig. 8 A is the illustraton of model of expression according to the wetting control of paper of first embodiment of the invention;

Fig. 8 B is the illustraton of model of expression according to the wetting control of paper of first embodiment of the invention;

Fig. 9 A is the illustraton of model of expression according to the wetting control of paper of first embodiment of the invention;

Fig. 9 B is the illustraton of model of expression according to the wetting control of paper of first embodiment of the invention;

Figure 10 A is the illustraton of model of expression according to the wetting control of paper of second embodiment of the invention;

Figure 10 B is the illustraton of model of expression according to the wetting control of paper of second embodiment of the invention;

Figure 11 A is the illustraton of model of expression according to the wetting control of paper of fourth embodiment of the invention;

Figure 11 B is the illustraton of model of expression according to the wetting control of paper of fourth embodiment of the invention;

Figure 12 is the illustraton of model of expression according to the wetting control of paper of third embodiment of the invention;

Figure 13 A is the illustraton of model of expression according to the wetting control of paper of fifth embodiment of the invention;

Figure 13 B is the illustraton of model of expression according to the wetting control of paper of fifth embodiment of the invention;

Figure 14 is the illustraton of model of expression according to the wetting control of paper of sixth embodiment of the invention;

Figure 15 is according to jackknife of the present invention and the right oblique perspective figure of folding roller;

Figure 16 is the schematic block diagram according to the bookbinding apparatus and the imaging equipment body of prior art;

Figure 17 is the schematic block diagram according to the bookbinding apparatus of prior art;

Figure 18 A is that the illustraton of model that paper curls takes place in expression;

Figure 18 B is that the illustraton of model that paper curls takes place in expression;

Figure 18 C is that the illustraton of model that paper curls takes place in expression.

The specific embodiment

Embodiments of the invention are described with reference to the accompanying drawings.In the following embodiments, components identical is represented with identical Reference numeral among all figure.According to using equipment structure of the present invention and various condition, can suitably change part dimension, material, shape and the relative position described among the embodiment, scope of the present invention is not limited to the following examples.

(first embodiment)

Referring to Fig. 1, Fig. 2, Fig. 4 A, Fig. 4 B, Fig. 7 A, Fig. 7 B, Fig. 8 A, Fig. 8 B, Fig. 9 A, Fig. 9 B, with the bookbinding apparatus of describing according to first embodiment of the invention and imaging device with this bookbinding apparatus.

Fig. 1 is the schematic block diagram of imaging equipment body on its cross section, and Fig. 2 is the schematic block diagram of attachment means on its cross section.

(structure of imaging equipment body)

As shown in Figure 1, imaging device 1000 is provided with imaging moiety 9003 and the attachment means 2 of being located at imaging equipment body 1 inside.As a kind of imaging device that makes up in this manner, for example, can consider digital copier etc.To describe the inside below has the formation and the operation of the imaging equipment body 1 of imaging moiety 9003.

In addition, imaging equipment body 1 is provided with printer section 103, is arranged in the scanner 102 above the printer section 103 and is used for supplying with to scanner 102 document feeder 101 of documents.

Further, the scanner 102 that is used to read file and picture is provided with scanner unit 904, speculum 905 to 907, lens 908 and imageing sensor 909 etc.

Then, when reading document D, at first, document D is placed on the document dish 900a of document feeder 101 by this scanner 102.In this case, suppose that document D places with supine condition, above the surface that promptly is formed with image on the document D on document dish 900a is positioned at.

Then, begin to transmit one by one in order document D by document feeder 101 from title page, afterwards, document D is sent to above the plate glass 902 through the crooked route from the left-hand to dextrad, will be discharged on the discharge plate 912.

When reading by the image on the original paper of document feeder 101 transmission, scanner unit 904 is maintained at the precalculated position, and at this moment, original paper D passes through from left to right along scanner unit 904, and carries out the process that reads on original paper D.

Reading process, when original paper D process plate glass 902, the lamp of scanner unit 904 illuminates original paper D, and its reverberation arrives imageing sensors 909 through speculum 905 to 907 and lens 908.

Imageing sensor 909 is fed to exposer 910 by the view data of the original paper that row reads.

In addition, whenever stopping on the plate glass 902 by the document D that document feeder 101 is transmitted, can be in this state by motion scan device unit 904 from left to right reading process.

Further, reading without document feeder 101 under the situation of document, the user can lift document feeder 101, and document is placed on the plate glass 902.Afterwards, the user can carry out the process that reads of document.

In addition, except above-described utensil, imaging equipment body 1 also is provided with and is used for supplying with the paper-supply section 9002 that is contained in the paper P in the carton 914,915 and is used for the imaging moiety 9003 of image transfer printing on the paper P that is supplied with by paper-supply section 9002.

Here, imaging moiety 9003 is provided with photosensitive drums 911, developing cell 913 and transfer printing charger 916 etc.When forming image,, on photosensitive drums 911, form electrostatic latent image by being radiated at from the laser of exposer 910 on the photosensitive drums 911.

Then, this electrostatic latent image is imaged as toner image by developing cell 913.Further, along the downstream of direction of transfer, be furnished with fixation unit 917 and paired discharging roller 104 etc. at imaging moiety 9003.

Be provided with operation display unit 400 on imaging equipment body 1, display unit 400 has a plurality of display units that are used for setting the key of various imaging functions and are used for showing information such as expression set condition.

Then, with the imaging operation of describing by the imaging equipment body 1 of above-mentioned formation.

At first, as already described, after having carried out predetermined imaging process, the view data of the document D that the imageing sensor 909 of scanner 102 reads is fed to exposer 910.Afterwards, exposer 910 can be exported laser in response to this picture signal.

Then, this laser is radiated on the photosensitive drums 911, is scanned by polygonal mirror simultaneously.So, on photosensitive drums 911, form electrostatic latent image in response to the laser of scanning.

Next, the electrostatic latent image that forms on photosensitive drums 911 is developed by developing cell 913, makes the visual toner image that becomes of electrostatic latent image.

On the other hand, paper P any one from carton 914,915, manual paper-supply section 925 and two-sided transfer path 924 transmits to imaging moiety 9003, and on imaging moiety 9003, the visual toner image on the photosensitive drums 911 is transferred on the paper P.Then, the paper P after 917 pairs of transfer printings of fixation unit imposes fixing.

The superincumbent paper P of image fixing is discharged into the portion that finishes 2 as attachment means by discharging roller 104.

For example, when turning over downwards under the situation of (that is, facing down) from imaging equipment body 1 discharge when the face that paper P is being formed toner image, the paper P that has passed through fixation unit 917 guides path 922 into by sideboard 921.

Then, through behind the sideboard 921, the rear end of paper P is gone back to.Then, paper P is sent to discharging roller 104 by sideboard 921 once more, to discharge from imaging equipment body 1.

Thus, paper P discharges from imaging equipment body 1, is formed with facing up of toner image.Under supine condition, discharge paper P by the method that discharge this upset back, beginning to carry out under the situation of imaging process from the brochure title page in order, promptly for example using document feeder 101 to carry out to arrange pagination under the situation of imaging process.

In addition, at carrying out also can arranging pagination under the situation of imaging process from the view data of computer.

In addition, in the cardboard P that transmits such as the OHP paper from manual paper feeding part 925, carry out paper P not being directed to path 922 under the situation of imaging process.Paper P can be discharged from imaging equipment body 1 by discharging roller 104 under the supine condition that forms toner image.

Further, carrying out on the reverse side of paper P under the situation of imaging process, directly along the direction of discharging roller 104 from 917 couples of paper P of fixation unit channeling conduct.

Then, after sideboard 921 was just passed through in the rear end of paper P, P went back to paper, and by the two-sided transfer path 924 of sideboard 921 guiding.

Then, referring to Fig. 3, with the controller of describing according to the imaging device 1000 of first embodiment of the invention.Fig. 3 is the block diagram of the controller of expression imaging device 1000.

As shown in Figure 3, the controller of imaging device 1000 is made of following part: the automatic document supply control part divides 153, image Input Control Element 154, image signal control unit 155, image output control unit 156 is finished portion's control module 157, and exterior I/F 158.Then, according to be stored among the ROM 151 control program and to the setting of guidance panel 152, can control these corresponding control modules as the cpu circuit unit 150 of control device in the imaging equipment body 1.

Then, the automatic document supply control part divides 153 control document feeders 101, image Input Control Element 154 gated sweep devices 102, and image output control unit 156 control exposers 910 are finished portion's control module 157 control attachment means (finishing portion) 2.In addition, guidance panel 152 has the display unit of a plurality of keys that are used for setting multiple imaging function and display setting state etc.The operation that this guidance panel 152 response users carry out each key and to cpu circuit unit 150 output key signals, and based on the signals of 150 outputs from the cpu circuit unit information is presented on the display unit.

RAM 159 is as the zone of temporary transient retentive control data and the zone of calculating according to control.Exterior I/F 158 is the interfaces with imaging device 1000 and outer computer 160, and exterior I/F 158 will extract from the print data of computer 160 and become bitmap images, and this bitmap images is outputed to image signal control unit 155 as view data.

In addition, the file and picture that is read by the imageing sensor (not shown) outputs to image signal control unit 155 from image Input Control Element 154.Image output control unit 156 will output to the exposing unit (not shown) from the view data of image signal control unit 155.

(structure of bookbinding apparatus)

Next, referring to Fig. 2, with the structure of describing according to the attachment means 2 of first embodiment.

In Fig. 2, the paper of exporting from imaging equipment body 1 transmits attachment means 2 by transfer roller one by one to 21, overlays stacking on the dish 22 as device for pilling.Stacking on the dish 22, backstop 23 is arranged in versatilely on the edge in the downstream of paper conveyance direction.

Backstop 23 positions according to the size of the paper that will use, and makes will overlay the core that stacks the paper on the dish 22 and stack the core that coils the opening portion 24 on 22 and overlap with being formed on.

Whenever each paper being supplied with when stacking on the dish 22, for every a piece of paper, the front end utilization of paper towing sliding part (pulling-over skid) hits on backstop 23, and utilizes the neat plate (not shown) of sign indicating number to carry out the coupling of direction of transfer and orthogonal direction.

When all paper that constitute brochures all overlay when stacking on the dish 22, the top that is arranged in opening portion 24 can fall as the jackknife 25 of folding device.Then, jackknife 25 further falls through opening portion 24, and bump overlays the core that stacks the paper on the dish 22 simultaneously, and paper is pushed away the core of folded sheet simultaneously downwards from opening portion 24.

Paper is folding by jackknife 25, is sent to folding roller as fold line formation device to 26 thereby utilize jackknife 25 to shift the paper that stacks below the dish 22 downwards onto from opening portion 24 as brochure.Then, folding roller is clamped paper to 26 from opposite both sides.In this case, brochure has formed fold line.Further, present embodiment can be built into the spring (not shown) is connected to folding roller on 26, therefore can absorb the thickness of brochure.

On the other hand, on the jackknife 25 bottom edge part of bump paper core, be provided with and be used for by ending the stapler 27 of card (pin of stapler) bookbinding brochure.Further, folding roller to 26 below, be provided with the shock plate 28 of stapler, shock plate 28 can move at paper transport path.

So that is constructed can carry out saddle type by stapler 27 and shock plate 28 according to the bookbinding apparatus 2 of first embodiment and order and close, simultaneously with folding roller to 26 fold lines that form brochures.

At brochure fold out fold line go forward side by side the shape saddle type order close after, jackknife 25 leaves 26 nip location and rises simultaneously from folding roller.Then, to 26, be formed with the brochure of fold line by further rotation folding roller along the direction transmission of dish 30.

Further, in attachment means shown in Figure 22, stack dish 22 and be described to horizontally disposed structure.Yet, be not restricted to this according to the structure of the attachment means 2 of first embodiment.If attachment means 2 is configured to become 0 °～85 ° angles in the scope for horizontal plane, paper can overlay and stack on the dish 22 so.

In addition, stapler 27 is described to be wholely set the structure at jackknife 25 fore-ends, yet, be not limited thereto according to the structure of the attachment means 2 of first embodiment.For example, stapler 27 can be used as the upstream side that the main body that is different from jackknife 25 and shock plate 28 are arranged on jackknife 25 together.

According to this structure, because the operation of backstop 23 and towing sliding part (not shown) is stacking two stop positions that paper is provided on the dish 22, and at first carry out saddle type on the dish 22 and order the process of closing stacking, thereby can form fold line for brochure.

In addition, these controls to paper are based on from the setting to various procedure schemas of guidance panel 152 or outer computer 160 inputs, via the portion that the finishes control module 157 of attachment means 2 one sides, undertaken by the cpu circuit unit 150 of imaging equipment body 1 one sides.

In addition, be one with finishing the cpu circuit unit 150 that portion's control module 157 is set as with imaging equipment body 1 one sides, paper can directly be controlled by imaging equipment body 1.

(structure of damping device)

Next, referring to Fig. 4 A and Fig. 4 B, with the structure of describing according to the damping device of first embodiment of the invention.

Shown in Fig. 4 A and Fig. 4 B, on attachment means 2, be furnished with wetting nozzle 31 on the top that stacks dish 22 opening portion 24 as wetted portions according to first embodiment.

Wetting nozzle 31 can wettingly be sent to the part that forms the brochure fold line on the paper that stacks dish 22.When wetting paper, the rigidity of paper reduces.When the rigidity of paper reduces, just can form the fold line of brochure more reliably, just may obtain that the amount of opening is little, the outward appearance excellent sheet.

That is to say that according to above-mentioned structure, the fold line rigidity as the brochure fold line on the paper can reduce, thereby increase folding roller, and may obtain that the amount of opening is little, the outward appearance excellent sheet 26 folding effects that produce.In addition because do not need not carry out on the folded portions wetting and only carry out on the part in necessity wetting, so this structure is efficiently.

In addition, the wetting nozzle 31 according to first embodiment of the invention is configured to carry out wetting from a side that becomes the brochure inboard to overlaying the paper that stacks that stacks on the dish 22.

When wetting paper as mentioned above, wetting back water is evaporated dried, and wetting side is shunk.Then, paper curls to wetting side.

Shown in Figure 18 A, when from the wetting paper in the brochure outside, paper curls to the open direction of brochure, thereby opens, so provide the not good brochure of outward appearance.

Shown in Figure 18 B, when making water be evenly distributed on the whole thickness direction when carrying out wetting to paper, paper does not curl.Yet, need spended time that water is evenly distributed on the whole thickness direction, so, the production efficiency of brochure reduced.

But, wetting owing to beginning shown in Figure 18 C in first embodiment in the inboard of brochure, thus the contraction of the paper of brochure inboard, so brochure curls towards the direction of brochure closure.That is to say that in first embodiment, even paper takes place to curl, they can not curl to the open direction of brochure yet.As a result, can provide outward appearance good brochure.

In addition, the wetting nozzle 31 according to the attachment means 2 of first embodiment of the invention is configured to from stacking the wetting brochure in top of dish 22.According to top structure, can wettingly one by one overlay the paper that stacks on the dish 22.

Therefore, because the fold line of all paper that can wetting formation brochure, so can reduce the amount of opening of brochure fully, and in brochure, can not take place uneven wetting simultaneously.

Further, as the wetting nozzle 31 according to first embodiment of the invention, can adopt by the wetting nozzle and the utilization of piezoelectric device injection drop and heat the wetting nozzle that the bubble that produces is injected drop, these nozzles are as the shower nozzle of ink-jet printer.

In addition, can fixing wetting nozzle 31 be set, perhaps the wetting nozzle of fixing 31 can be arranged to make it can be along the part of the inswept formation fold line of the direction of interior fold line across the whole zone that forms fold line.

In addition, be not limited to wetting nozzle 3, it is evident that on the contrary, even also can obtain identical advantage by the structure that roller, brush etc. applies water according to the damping device of first embodiment of the invention.

In addition, can be used as Wetting Solution such as the volatile ingredient of water, ethanol and the transparent ink of ink-jet printer etc.

Wetting Solution is not limited to the solution of room temperature, can use the steam of heat.In this case, because the amount of opening of paper can further reduce under the effect of heat and moisture,, therefore can provide and open the good brochure of littler outward appearance so can on paper, form fold line reliably.

(structure of device for pilling)

In first embodiment, paper overlays on the device for pilling in order, makes its wetting surface up.Because the wetted portions of the paper that stacks is covered by the paper that will stack thereon, so the paper wetted portions can not be exposed in the environment.

Therefore, when folding roller forms fold line to 26 on brochure, can prevent that feed from giving the water evaporates of paper, keep wetting state thus satisfactorily.

(to the description of wetting control)

Be described in wetting control among first embodiment below with reference to Fig. 4 A, 4B, 7A, 7B, 8A, 8B, 9A, 9B.Wetting control is carried out in communication between the cpu circuit unit 150 by imaging equipment body 1 and the portion that the finishes control module 157 of bookbinding apparatus 2.

In the first embodiment of the present invention, be provided with control device.The paper that will become the brochure fold line when 31 pairs at wetting nozzle as damping device partly carries out when wetting, and control device can be controlled wetting width with changing.Wetting width refers to, the wetting zones that forms along the paper fold line with the perpendicular direction of fold line on size.

When the not too big paper of the amount of opening is wetted,, thus, reduce the amount of opening of paper fully according to the wetting part that will form the brochure fold line of the wetting width shown in Fig. 4 A.

But, when the big paper of the amount of opening is wetted, need fully reduces the amount of opening of paper and shown in Fig. 4 B, increase wetting width like that, and the wetting part that will form the brochure fold line.

When the amount of opening of paper is bigger, controls wetting width and make it become big.As a result, even use the big paper of the amount of opening, fold line also can be formed on the paper reliably, therefore can bind out the good brochure of open outward appearance does not take place.

Shown in Fig. 7 A, 7B, can control wetting width changeably at the every a piece of paper that constitutes brochure.

Shown in Fig. 7 A, wetting width is controlled, make the wetting width X2 of the paper P2 on the brochure inner position less than the wetting width X1 of the paper P1 on the outer position.Can change wetting width at every paper in such a manner.

Utilize this structure, shown in Fig. 7 B, when forming the fold line of brochure to 26, can wetting width be set at suitable amount according to the fold domain of every the paper that constitutes brochure by folding roller.

As a result, can prevent the little paper in fold domain on the brochure inner position, and prevent that the big paper in fold domain on the brochure outer position is insufficiently wetted by excessively wetting.

That is to say, can the wetting reliably part that will form the brochure fold line, do not have waste simultaneously, therefore can bind out the good brochure of still less open outward appearance.

Shown in Fig. 8 A, 8B, 9A, 9B, can control the wetting width of a piece of paper changeably along the part that will form the brochure fold line.

What Fig. 8 A represented is, the wetting model of the wetting width that makes the paper core when the wetting width of control during greater than the paper end.

Big and when forming fold line on thick brochure when number of paper, folding roller departs from easily to 26.Owing to depart from, folding roller weakens once in a while to 26 pressure that act on the paper core.As a result, the core of paper can not fold reliably, therefore can provide the not good brochure of open outward appearance takes place.

Yet, shown in Fig. 8 A, when the wetting width of control makes the wetting width of paper core become big, can on the position of more close paper core, reduce paper rigidity.Even pressure weakens, also can on the core of paper, form fold line reliably.

Therefore, even 26 pressure that are applied on the paper core are weakened when folding roller, also folded sheet reliably.Because this reason can be bound out the good brochure of still less open outward appearance.

What Fig. 8 B represented is, the wetting model of the wetting width that makes the paper core when the wetting width of control during less than the paper end.

Using moisture easily under the situation of the paper of paper end evaporation, when with folding roller during to 26 folders, the end of paper may become dry.As a result, the paper end is in does not have fully wetting state, and is difficult to form reliably fold line, therefore can provide the not good brochure of open outward appearance takes place.

Yet shown in Fig. 8 B, the wetting width that makes the paper end when the wetting width of control is during greater than the wetting width of paper core, though moisture from the evaporation of paper end, described end also unlikely is in not have abundant wetting state.

Assign to the end from central division by wetting reliably, so can on brochure, form fold line reliably owing to will form the paper part of brochure fold line.As a result, can bind out the good brochure of still less open outward appearance.

In Fig. 8 A, 8B, be controlled at the wetting width on the direction of the part that will be folded along brochure in order changeably.Wetting control of the present invention is not limited thereto, and shown in Fig. 9 A, 9B, need not go into the details, and also can produce similar effect according to the structure of the wetting width of the variable control of stepped form.

Wetting control in first embodiment is based on that the information relevant with the aforesaid paper amount of opening carries out.The information relevant with the paper amount of opening comprises for example fiber orientation of paper rigidity, the number of paper that constitutes brochure and paper.

With regard to these information, the fiber orientation of paper rigidity, the number of paper that constitutes brochure and paper can directly detect with the checkout gear that is arranged at imaging equipment body 1 or bookbinding apparatus 2.According to another kind of mode, these information can be imported by guidance panel 152 in advance by the user.As a result, can carry out wettingly effectively, therefore, can bind out the brochure that does not have open outward appearance good according to the amount of opening of paper.

(second embodiment)

Referring to Fig. 5 A, 5B, 10A, 10B, bookbinding apparatus and the imaging device with this bookbinding apparatus according to second embodiment of the invention are described.

In first embodiment, variable control be wetting width on the brochure part that will be folded.But, in a second embodiment, variable control be wetting amount on the brochure part that will be folded.

Because in a second embodiment, so identical among the structure of the structure of imaging equipment body, the structure of bookbinding apparatus, damping device and the structure of device for pilling and first embodiment is no longer described.Only the wetting control structure as the second embodiment feature is described.

(wetting control structure)

Referring to Fig. 5 A, 5B, 10A, 10B, the wetting control structure among second embodiment is described.

In the second embodiment of the present invention, be provided with control device.When as the wetting paper part that will become the brochure fold line of the wetting nozzle 31 of damping device, control device is controlled wetting amount changeably.

When the use amount of opening is not very big paper, shown in Fig. 5 A,, also can reduce the amount of opening of paper fully even the wetting amount that will become on the part of brochure fold line is set little numerical value for.

When the big paper of the use amount of opening, need increase the wetting amount on the described part that will become the brochure fold line for the amount of opening that fully reduces paper, shown in Fig. 5 B.

When controlling wetting amount owing to the amount of opening of paper is bigger and make it become big, promptly use the big paper of the amount of opening to bind brochure, also folded sheet reliably, thereby can obtain the brochure that do not have open outward appearance good.

Can control wetting amount changeably at every the paper that constitutes brochure.When ground paper is opened the front cover that is used for brochure, increase wetting amount, but reduce the wetting amount on the inboard paper, thereby can form satisfied fold line.

For the paper of brochure inboard, make wetting amount become bigger, for the paper in the outside, make wetting amount become littler, thereby form satisfied fold line.

That is to say, because moisture moves to the outside from the inside, and from outmost paper surface evaporation,, make the whole brochure can be wetting equably so correspondingly control wetting amount.

Shown in Figure 10 A, 10B, can to become the part of brochure fold line on a piece of paper, control wetting amount changeably.

What Figure 10 A represented is, the wetting model of the wetting amount that makes the paper core when the control wetting amount during greater than paper end wetting amount.

Big and when forming fold line at thick brochure when number of paper, folding roller departs from easily to 26, and owing to departing from, folding roller weakens once in a while to 26 pressure that act on the paper core.As a result, the core of paper can not fold, and therefore can getablely be that the not good brochure of open outward appearance takes place.

Shown in Figure 10 A, when the control wetting amount so that the wetting amount of paper core when bigger, can reduce paper rigidity on the position of more close paper core.Therefore, even utilize the pressure that weakens, also can on the core of paper, form fold line reliably.

Even 26 pressure that affact the paper core are weakened when folding roller, also folded sheet reliably.As a result, can bind out the good brochure of still less open outward appearance.

What Figure 10 B represented is, when the control wetting amount so that the wetting model of the wetting amount of paper core during less than paper end wetting amount.

When the paper that uses moisture to evaporate from the paper end easily, when forming fold line to 26 with folding roller on brochure, the end of paper may become dry.As a result, the paper end is in does not have fully wetting state, and is difficult to form reliably fold line, and what therefore obtain is that the not good brochure of open outward appearance possible take place.

Shown in Figure 10 B, the wetting amount that makes the paper end when the control wetting amount is during greater than the wetting amount of paper core, though moisture from the evaporation of paper end, described end also unlikely is in not have abundant wetting state.

Wetting control in a second embodiment is based on that the information relevant with the aforesaid paper amount of opening carries out.The information relevant with the paper amount of opening comprises for example fiber orientation of paper rigidity, the number of paper that constitutes brochure and paper.

These information can detect with the test section device that is arranged at imaging equipment body 1 or bookbinding apparatus 2, are perhaps imported in advance by guidance panel 152 by the user.As a result, can carry out wettingly effectively, therefore, can bind out the brochure that does not have open outward appearance good according to the amount of opening of paper.

(the 3rd embodiment)

Referring to Fig. 6 A, 6B, 12, bookbinding apparatus and the imaging device with this bookbinding apparatus according to third embodiment of the invention are described.

In first embodiment, variable control be the wetting width that will become on the paper part of brochure fold line.In a second embodiment, variable control is the wetting amount that will become on the paper part of brochure fold line.

On the contrary, in the third embodiment of the present invention, the control wetting paper part that will become the brochure fold line whether selectively.

Because so identical among the structure of the structure of the structure of imaging equipment body, bookbinding apparatus, the structure of damping device and device for pilling and first and second embodiment is no longer described.Only the wetting control structure as the 3rd embodiment feature is described.

(wetting control structure)

Referring to Fig. 6 A, 6B, 12, the wetting control among the 3rd embodiment is described.

In the 3rd embodiment, have control device as the wetting nozzle 31 of damping device, this control device can carry out switch selectively, with the wetting or nonwetting paper part that will become the brochure fold line.

When the amount of opening of the paper that constitutes brochure is not very big and during all paper that need not wetting formation brochure, as shown in Figure 6A, can be to constituting the paper of brochure or carry out wetting every several paper every one.

When the wetted and therefore paper of its amount of opening formation brochure that should reduce, when need not wetting paper and mix, only the wetted paper of needs is carried out wetting, nonwetting other paper.

When whether during every paper of wetting formation brochure, binding out the good brochure of still less open outward appearance efficiently, and can not take place excessively wetting or insufficient wetting simultaneously according to the control of the amount of opening of paper.

Shown in Fig. 6 B, can control, make that to have only paper and the locational paper of outermost on the inner position of brochure nonwetting, and the wetting paper that is clipped between the two.

The applicable situation of this control structure is, use special paper for forming the brochure appearance surfaces, in these special papers, owing to wetting from the teeth outwards little wrinkle, wave and color change can take place, for example the surface is through the coated paper and the thick Japan paper of fiber of special coating.

Utilize this control structure, because the nonwetting paper that will become the brochure appearance surfaces, so little wrinkle, wave and color change can not take place on the paper surface that will become the brochure appearance surfaces.For this reason, can not make the visual quality variation of brochure.

Owing to becoming the part of fold line on the paper that has wet the brochure inboard, so can reduce the amount of opening of paper reliably.Therefore, utilize this control structure can bind out the good brochure of still less open outward appearance.

As shown in figure 12, can control the part that will become the brochure fold line on wetting a piece of paper whether selectively.

What Figure 12 represented is, when the wetting model that whether control is wetting will become the part of brochure fold line and only wetting paper core the time.

Even little of needn't carrying out under the wetting situation in the amount of opening of paper, when the quantity of paper is big, the brochure thickening.Clamp the big brochure of this thickness when folding when folding roller to 26, folding roller can depart from 26, thereby the pressure that acts on the brochure core weakens owing to departing from.

When folding roller weakens 26 pressure, be difficult to form reliably fold line, what therefore obtain may be the not good brochure of open outward appearance.

Yet, as shown in figure 12, when the paper core to the pressure recession carries out when wetting, even folding roller weakens 26 pressure, the also core of folded sheet reliably.

Therefore, to become the paper of brochure fold line part owing to can fold reliably, so can bind out the good brochure of still less open outward appearance.

Wetting control in the 3rd embodiment is based on that the information relevant with the aforesaid paper amount of opening carries out.The information relevant with the paper amount of opening comprises for example fiber orientation of paper rigidity, the number of paper that constitutes brochure and paper.

These information can detect with the checkout gear that is arranged at imaging equipment body 1 or bookbinding apparatus 2, are perhaps imported in advance by guidance panel 152 by the user.Therefore as a result, can carry out wettingly effectively, can bind out the brochure that does not have open outward appearance good according to the amount of opening of paper.

(the 4th embodiment)

Referring to Figure 11 A, 11B, bookbinding apparatus and the imaging device with this bookbinding apparatus according to fourth embodiment of the invention are described.

In first embodiment, variable control be the wetting width that will become on the paper part of brochure fold line.In a second embodiment, variable control is the wetting amount that will become on the paper part of brochure fold line.In the 3rd embodiment, the control wetting paper part that will become the brochure fold line whether selectively.

On the contrary, in the fourth embodiment of the present invention, wettingly at whether to become the paper part of brochure fold line and the combination of wetting width, carry out wetting control.

Because structure, the structure of bookbinding apparatus, the structure of damping device and the structure of device for pilling of imaging equipment body, so identical with among first, second and third embodiment is no longer described.Only the wetting control structure as the 4th embodiment feature is described.

(wetting control structure)

Referring to Figure 11 A, 11B, the wetting control among the 4th embodiment is described.

In the fourth embodiment of the present invention, have control device as the wetting nozzle 31 of moistening unit, whether this control device is wetting at will become the paper part of brochure fold line and the combination of wetting width, controls.

Figure 11 A represents it is with binder (stapler) 27 bookbinding brochures the time, the wetting model during regional on local wetting a piece of paper except pierced through part by binder 27.

Because wetted nozzle 31 wetting paper are partly located the intensity variation, so when binder 27 pierced through wetted part, this part may be torn.

In this case, to whether wetting and wetting width is controlled, thus the wetting part that binder 27 does not pierce through in the part that will become the brochure fold line.As a result, can bind out the good brochure of still less open outward appearance, simultaneously can be owing to paper tear takes place forwarding.

What Figure 11 B represented is the wetting model when the zone that does not contact with jackknife 25 on the paper that will be wetted is wetting by part.

Jackknife 25 can be roughly straight shape, has uniform cross-sectional area on the whole zone that is formed at the fold line on the paper.On the other hand, as shown in figure 15, folding roller to 26 and jackknife 25 be the step shape, can be arranged to the form of comb teeth shape.

As a result, when jackknife 25 descends, and brochure be pushed into folding roller in 26 the roll gap or jackknife 25 rise again and when separating, can reduce load resistance and resistance to sliding.

When the paper part of contact jackknife 25 was wetted, paper strength was not enough on part that will be wetting.For this reason, paper may begin to tear on the contact range of jackknife 25.

In this case, shown in Figure 11 B, the scope of contact jackknife 25 is not wetting by part, so can allow jackknife 25 to contact with contact portion, perhaps separates from this contact portion, and keeps strength of paper simultaneously.

Can to whether wettingly to become the part of fold line and the combination of wetting width is controlled, thus wetting and jackknife 25 discontiguous parts.

According to this wetting control, can prevent because therefore the paper tear that contact jackknife 25 causes can provide still less open outward appearance good brochure.

Wetting control in the 4th embodiment is based on that the information relevant with the aforesaid paper amount of opening carries out.The information relevant with the paper amount of opening comprises the fiber orientation of paper rigidity, the number of paper that constitutes brochure and paper.

(the 5th embodiment)

Referring to Figure 13 A, 13B, bookbinding apparatus and the imaging device with this bookbinding apparatus according to fifth embodiment of the invention are described.

In the 4th embodiment, wettingly at whether to become the paper part of brochure fold line and the combination of wetting width is controlled.On the contrary, in the fifth embodiment of the present invention, wettingly for whether to become the paper part of brochure fold line and the combination of wetting amount is controlled.

Because so identical among the structure of the structure of the structure of imaging equipment body, bookbinding apparatus, the structure of damping device and device for pilling and first, second, third and fourth embodiment is no longer described.Only the wetting control structure as the 5th embodiment feature is described.

(wetting control structure)

Referring to Figure 13 A, 13B, the wetting control structure of damping device among the 5th embodiment is described.

In the fifth embodiment of the present invention, have control device as the wetting nozzle 31 of damping device, whether this control device is wetting at will become the paper part of brochure fold line and the combination of wetting amount is controlled.

As shown in FIG. 13A, when brochure is made of the different polytype paper of the amount of opening, controls and make and not carry out wetting to need not wetting paper the amount of opening is little.For the big paper of the amount of opening, can make that wetting amount is big more on the big more paper of the amount of opening according to the amount of opening control wetting amount.

Even when brochure is made of the different polytype paper of the amount of opening, whether wetting also can control according to the amount of opening.When carrying out when wetting, the control wetting amount thus, reduces the amount of opening of paper effectively.

Therefore, can on brochure, form fold line reliably, so can bind out the brochure that does not have open outward appearance good.

Shown in Figure 13 B, can to form the part of brochure fold line on a piece of paper, whether control is wetting and control wetting amount changeably.

What Figure 13 B represented is, the end of nonwetting paper, but come part beyond the wetting end along the part that will form the brochure fold line, and the control wetting amount so that wetting amount the closer to the core of paper big more wetting model just.

Even,, will obtain thick brochure if number of paper is big when using the amount of opening little to needn't carry out wetting paper the time.When folding roller was clamped thick brochure to 26, folding roller can depart from once in a while to 26.

When folding roller departed from 26, folding roller may weaken 26 pressure that act on the brochure core.As a result, the core of folder reliably, what therefore obtain may be the not good brochure of open outward appearance.

Yet, shown in Figure 13 B, at the pressure recession, when wetting amount being set on the paper core when big, even folding roller weakens 26 pressure, the also core of folded sheet reliably.Because folding roller can push the end of paper reliably to 26, so does not need wetting.So do not carry out unnecessary wettingly, and therefore this situation is efficient.

According to this wetting control,, therefore can bind out the good brochure of still less open outward appearance owing to can reduce the amount of opening of paper.

Wetting control in the 5th embodiment is based on that the information relevant with the aforesaid paper amount of opening carries out.The information relevant with the paper amount of opening comprises the fiber orientation of paper rigidity, the number of paper that constitutes brochure and paper.

(the 6th embodiment)

Referring to Figure 14, bookbinding apparatus and the imaging device with this bookbinding apparatus according to sixth embodiment of the invention are described.

In the 4th embodiment, wettingly at whether to become the paper part of brochure fold line and the combination of wetting width is controlled.In the 5th embodiment, wettingly for whether to become the paper part of brochure fold line and the combination of wetting amount is controlled.

On the contrary, in the sixth embodiment of the present invention, control for the wetting amount on the paper part that will become the brochure fold line and the combination of wetting width.

Since the structure of the structure of the structure of imaging equipment body, bookbinding apparatus, the structure of damping device and device for pilling with first, second, third and fourth, identical among five embodiment, so no longer described.Only the wetting control structure as the 6th embodiment feature is described.

(wetting control structure)

Referring to Figure 14, the wetting control structure of damping device among the 6th embodiment is described.

In the sixth embodiment of the present invention, have control device as the wetting nozzle 31 of damping device, this control device is controlled at the wetting amount on the paper part that will become the brochure fold line and the combination of wetting width.

What Figure 14 represented is, when wetting width and wetting amount be controlled and the paper S1 that constitutes brochure to S4 the wetting model when wetted.

For the amount of opening is not very big paper S1, controls wetting width and wetting amount and makes it have little numerical value, so can carry out wetting to the part that will become the brochure fold line.

When wetting amount increased, the paper S2 that the amount of opening is big understood because wetting amount is big variation because of its intensity, so may tear.For S2, can control wetting, make wetting width become big, and do not increase wetting amount.

When wetting width increased, the paper S3 that the amount of opening is big was because moisture is given the part that is formed image by imaging equipment body 1 in the above, so may outward appearance not good.For S3, can control wetting, wetting amount is increased, and do not increase wetting width.

On the king-sized paper S4 of the amount of opening, can not tear owing to big wetting amount causes, can not give moisture to the part that has formed image owing to increasing wetting width yet.For S4, can control wetting, wetting amount and wetting width are increased.

Wetting width and wetting amount to every paper constituting brochure are controlled, and make the part that will become the brochure fold line wetting.As a result, the amount of opening of the paper of brochure can be reduced to constitute, therefore the brochure that does not have open outward appearance good can be bound out.

Wetting control in the 6th embodiment is based on that the information relevant with the aforesaid paper amount of opening carries out.The information relevant with the paper amount of opening for example comprises the fiber orientation of paper rigidity, the number of paper that constitutes brochure and paper.

Whether wetting the control device that the 4th to the 6th embodiment describes controlled for the combination that comprises any two conditions in wetting width, wetting amount and the wetting conditions.But, need not go into the details, the combination of these three wetting conditions is controlled for all, can obtain similar effect.

Claims

1. bookbinding apparatus comprises:

Device for pilling is used to stack paper above;

Folding device is used for the folding paper that is overlayed on the described device for pilling;

Damping device is used for before being folded by described folding device, the wetting paper part that will be made into the brochure fold line;

Control device is used to control described damping device and carries out wetting conditions when wetting,

Wherein, corresponding to every the paper that constitutes described brochure, described wetting conditions is variable.

2. bookbinding apparatus according to claim 1, wherein, described wetting conditions is the wetting width that will become on the described paper part of brochure fold line.

3. bookbinding apparatus according to claim 1, wherein, described wetting conditions is the wetting amount that will become on the described paper part of described brochure fold line.

4. bookbinding apparatus according to claim 1, wherein, whether described wetting conditions the wetting described paper part that will become the brochure fold line.

5. bookbinding apparatus according to claim 1, wherein, described wetting conditions is wetting width, wetting amount, whether at least two combination in the wetting described paper part that will become the brochure fold line.

6. bookbinding apparatus according to claim 1, wherein, described damping device partly carries out wetting for the described paper that will become the brochure fold line on every the paper that is stacked on the described device for pilling.

7. bookbinding apparatus according to claim 1, wherein, described damping device partly carries out wetting from the inboard of described brochure to the described paper that will become the brochure fold line.

8. bookbinding apparatus according to claim 1, wherein, described damping device begins wetting paper from the outside of described brochure in order.

9. bookbinding apparatus according to claim 1, wherein, paper overlayed in order on the described device for pilling, made the paper that overlays on the described device for pilling by the wetting surface of described damping device up.

10. bookbinding apparatus according to claim 1, wherein, described control device based on the relevant information of the amount of opening of wanting wetted paper, control described wetting conditions.

11. an imaging device comprises:

Imaging device is used for forming image on paper;

As each described bookbinding apparatus in the claim 1 to 10, described bookbinding apparatus is bound the paper that is formed image by described imaging device in the above.

12. an imaging device comprises:

Imaging device is used for forming image on paper;

Device for pilling is used for stacking paper on this device for pilling;

Damping device is used for before being folded by described folding device, the wetting paper part that will make the brochure fold line;